Monitor crypto, stocks, and A-shares prices with real-time alerts
监控加密货币、股票和 A 股价格,支持实时价格警报
- Multi-Exchange Support: Binance, Binance Futures, CoinGecko, CoinMarketCap, A-Shares (China stocks)
- Real-time Price Alerts: Set up to 2 alert prices per asset
- Price Charts: 24-hour sparkline visualization
- Sound Notifications: Audio alerts when price targets are hit
- Password Protection: Encrypt API keys with master password (AES-GCM + PBKDF2)
- Privacy First: All data stored locally, no server upload
- Download the latest release from GitHub
- Unzip the file
- Open Chrome/Edge and go to
chrome://extensions/ - Enable "Developer mode" (top right)
- Click "Load unpacked" and select the unzipped folder
- Open the extension from the toolbar
- Set a master password to protect your data
- The default watchlist includes BTC, ETH, SOL, and PAXG
- Select an API provider (e.g., Binance)
- Enter the symbol (e.g., BTCUSDT)
- Click "Add"
- Click on the alert row under each asset
- Enter your target price
- The percentage difference from current price will be shown
- Click the settings (gear) icon
- Select an API provider
- Enter your API key (encrypted with your master password)
Note: Public APIs like Binance work without API keys. Private APIs like CoinMarketCap require an API key.
- Encryption: All API keys are encrypted using Web Crypto API (PBKDF2 + AES-GCM)
- Master Password: Required to unlock the extension each session
- Local Storage: All data stays on your device
- Forgot Password: You can reset all data if you forget your password (irreversible)
- No personal data is collected
- No data is sent to external servers (except price queries to exchange APIs)
- API keys are encrypted and never exposed in plain text
- 多交易所支持:币安、币安合约、CoinGecko、CoinMarketCap、A 股(沪深)
- 实时价格警报:每个资产可设置 2 个警报价格
- 价格走势图:24 小时 Sparkline 可视化
- 声音提醒:价格达到目标时播放提醒音
- 密码保护:使用主密码加密 API 密钥(AES-GCM + PBKDF2)
- 隐私优先:所有数据本地存储,不上传服务器
- 从 GitHub 下载最新版本
- 解压文件
- 打开 Chrome/Edge 浏览器,访问
chrome://extensions/ - 开启右上角"开发者模式"
- 点击"加载已解压的扩展程序",选择解压后的文件夹
- 从工具栏打开扩展程序
- 设置主密码以保护您的数据
- 默认监控列表包含 BTC、ETH、SOL 和 PAXG
- 选择 API 提供商(如币安)
- 输入交易对代码(如 BTCUSDT)
- 点击"添加"
- 点击资产下方的警报行
- 输入目标价格
- 会显示与当前价格的百分比差异
- 点击设置(齿轮)图标
- 选择 API 提供商
- 输入 API 密钥(将使用主密码加密)
注意:币安等公共 API 无需 API 密钥即可使用。CoinMarketCap 等私有 API 需要 API 密钥。
- 加密技术:使用 Web Crypto API 加密所有 API 密钥(PBKDF2 + AES-GCM)
- 主密码:每次使用扩展程序时需要输入密码解锁
- 本地存储:所有数据保存在您的设备上
- 忘记密码:如忘记密码可选择重置所有数据(不可恢复)
- 不收集任何个人数据
- 除向交易所 API 查询价格外,不向外部服务器发送数据
- API 密钥经过加密,绝不会以明文形式暴露
- Manifest V3: Chrome Extension latest standard
- Web Crypto API: PBKDF2 + AES-GCM encryption
- Offscreen API: Audio playback in service worker context
- Side Panel API: Native Chrome side panel integration
See CHANGELOG.md for version history.
查看 CHANGELOG.md 了解版本历史。
MIT License - feel free to use and modify!
MIT 许可证 - 自由使用和修改!